mbed official / mbed-dev

mbed library sources. Supersedes mbed-src.

Dependents:   Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more

platform/mbed_sdk_boot.c@189:f392fc9709a3, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 22:31:08 2019 +0000
Revision:
189:f392fc9709a3
Parent:
187:0387e8f68319 
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 167:e84263d55307 1 /* mbed Microcontroller Library
AnnaBridge 167:e84263d55307 2 * Copyright (c) 2017 ARM Limited
AnnaBridge 189:f392fc9709a3 3 * SPDX-License-Identifier: Apache-2.0
AnnaBridge 167:e84263d55307 4 *
AnnaBridge 167:e84263d55307 5 * Licensed under the Apache License, Version 2.0 (the "License");
AnnaBridge 167:e84263d55307 6 * you may not use this file except in compliance with the License.
AnnaBridge 167:e84263d55307 7 * You may obtain a copy of the License at
AnnaBridge 167:e84263d55307 8 *
AnnaBridge 167:e84263d55307 9 * http://www.apache.org/licenses/LICENSE-2.0
AnnaBridge 167:e84263d55307 10 *
AnnaBridge 167:e84263d55307 11 * Unless required by applicable law or agreed to in writing, software
AnnaBridge 167:e84263d55307 12 * distributed under the License is distributed on an "AS IS" BASIS,
AnnaBridge 167:e84263d55307 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
AnnaBridge 167:e84263d55307 14 * See the License for the specific language governing permissions and
AnnaBridge 167:e84263d55307 15 * limitations under the License.
AnnaBridge 167:e84263d55307 16 */
AnnaBridge 167:e84263d55307 17
AnnaBridge 167:e84263d55307 18 #include "mbed_toolchain.h"
AnnaBridge 167:e84263d55307 19 #include <stdlib.h>
AnnaBridge 167:e84263d55307 20 #include <stdint.h>
AnnaBridge 167:e84263d55307 21 #include "cmsis.h"
AnnaBridge 167:e84263d55307 22
AnnaBridge 167:e84263d55307 23 /* This startup is for mbed 2 baremetal. There is no config for RTOS for mbed 2,
AnnaBridge 167:e84263d55307 24 * therefore we protect this file with MBED_CONF_RTOS_PRESENT
AnnaBridge 167:e84263d55307 25 * Note: The new consolidated started for mbed OS is in rtos/mbed_boot code file.
AnnaBridge 167:e84263d55307 26 */
AnnaBridge 167:e84263d55307 27 #if !defined(MBED_CONF_RTOS_PRESENT)
AnnaBridge 167:e84263d55307 28
AnnaBridge 167:e84263d55307 29 /* mbed_main is a function that is called before main()
AnnaBridge 167:e84263d55307 30 * mbed_sdk_init() is also a function that is called before main(), but unlike
AnnaBridge 167:e84263d55307 31 * mbed_main(), it is not meant for user code, but for the SDK itself to perform
AnnaBridge 167:e84263d55307 32 * initializations before main() is called.
AnnaBridge 167:e84263d55307 33 */
AnnaBridge 187:0387e8f68319 34 MBED_WEAK void mbed_main(void)
AnnaBridge 167:e84263d55307 35 {
AnnaBridge 167:e84263d55307 36
AnnaBridge 167:e84263d55307 37 }
AnnaBridge 167:e84263d55307 38
AnnaBridge 167:e84263d55307 39 /* This function can be implemented by the target to perform higher level target initialization
AnnaBridge 167:e84263d55307 40 */
AnnaBridge 187:0387e8f68319 41 MBED_WEAK void mbed_sdk_init(void)
AnnaBridge 167:e84263d55307 42 {
AnnaBridge 167:e84263d55307 43
AnnaBridge 167:e84263d55307 44 }
AnnaBridge 167:e84263d55307 45
AnnaBridge 167:e84263d55307 46 MBED_WEAK void software_init_hook_rtos()
AnnaBridge 167:e84263d55307 47 {
AnnaBridge 167:e84263d55307 48 // Nothing by default
AnnaBridge 167:e84263d55307 49 }
AnnaBridge 167:e84263d55307 50
AnnaBridge 167:e84263d55307 51 void mbed_copy_nvic(void)
AnnaBridge 167:e84263d55307 52 {
AnnaBridge 167:e84263d55307 53 /* If vector address in RAM is defined, copy and switch to dynamic vectors. Exceptions for M0 which doesn't have
AnnaBridge 167:e84263d55307 54 VTOR register and for A9 for which CMSIS doesn't define NVIC_SetVector; in both cases target code is
AnnaBridge 167:e84263d55307 55 responsible for correctly handling the vectors.
AnnaBridge 167:e84263d55307 56 */
AnnaBridge 167:e84263d55307 57 #if !defined(__CORTEX_M0) && !defined(__CORTEX_A9)
AnnaBridge 167:e84263d55307 58 #ifdef NVIC_RAM_VECTOR_ADDRESS
AnnaBridge 167:e84263d55307 59 uint32_t *old_vectors = (uint32_t *)SCB->VTOR;
AnnaBridge 187:0387e8f68319 60 uint32_t *vectors = (uint32_t *)NVIC_RAM_VECTOR_ADDRESS;
AnnaBridge 167:e84263d55307 61 for (int i = 0; i < NVIC_NUM_VECTORS; i++) {
AnnaBridge 167:e84263d55307 62 vectors[i] = old_vectors[i];
AnnaBridge 167:e84263d55307 63 }
AnnaBridge 167:e84263d55307 64 SCB->VTOR = (uint32_t)NVIC_RAM_VECTOR_ADDRESS;
AnnaBridge 167:e84263d55307 65 #endif /* NVIC_RAM_VECTOR_ADDRESS */
AnnaBridge 167:e84263d55307 66 #endif /* !defined(__CORTEX_M0) && !defined(__CORTEX_A9) */
AnnaBridge 167:e84263d55307 67 }
AnnaBridge 167:e84263d55307 68
AnnaBridge 167:e84263d55307 69 /* Toolchain specific main code */
AnnaBridge 167:e84263d55307 70
AnnaBridge 174:b96e65c34a4d 71 #if defined (__CC_ARM) || (defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 5010060))
AnnaBridge 167:e84263d55307 72
AnnaBridge 167:e84263d55307 73 int $Super$$main(void);
AnnaBridge 167:e84263d55307 74
AnnaBridge 187:0387e8f68319 75 int $Sub$$main(void)
AnnaBridge 167:e84263d55307 76 {
AnnaBridge 167:e84263d55307 77 mbed_main();
AnnaBridge 167:e84263d55307 78 return $Super$$main();
AnnaBridge 167:e84263d55307 79 }
AnnaBridge 167:e84263d55307 80
AnnaBridge 187:0387e8f68319 81 void _platform_post_stackheap_init(void)
AnnaBridge 167:e84263d55307 82 {
AnnaBridge 167:e84263d55307 83 mbed_copy_nvic();
AnnaBridge 167:e84263d55307 84 mbed_sdk_init();
AnnaBridge 167:e84263d55307 85 }
AnnaBridge 167:e84263d55307 86
AnnaBridge 187:0387e8f68319 87 #elif defined (__GNUC__)
AnnaBridge 167:e84263d55307 88
AnnaBridge 167:e84263d55307 89 extern int __real_main(void);
AnnaBridge 167:e84263d55307 90
AnnaBridge 167:e84263d55307 91 void software_init_hook(void)
AnnaBridge 167:e84263d55307 92 {
AnnaBridge 167:e84263d55307 93 mbed_copy_nvic();
AnnaBridge 167:e84263d55307 94 mbed_sdk_init();
AnnaBridge 167:e84263d55307 95 software_init_hook_rtos();
AnnaBridge 167:e84263d55307 96 }
AnnaBridge 167:e84263d55307 97
AnnaBridge 167:e84263d55307 98
AnnaBridge 187:0387e8f68319 99 int __wrap_main(void)
AnnaBridge 167:e84263d55307 100 {
AnnaBridge 167:e84263d55307 101 mbed_main();
AnnaBridge 167:e84263d55307 102 return __real_main();
AnnaBridge 167:e84263d55307 103 }
AnnaBridge 167:e84263d55307 104
AnnaBridge 167:e84263d55307 105 #elif defined (__ICCARM__)
AnnaBridge 167:e84263d55307 106
AnnaBridge 167:e84263d55307 107 int __low_level_init(void)
AnnaBridge 167:e84263d55307 108 {
AnnaBridge 187:0387e8f68319 109 mbed_copy_nvic();
AnnaBridge 187:0387e8f68319 110 return 1;
AnnaBridge 167:e84263d55307 111 }
AnnaBridge 167:e84263d55307 112
AnnaBridge 167:e84263d55307 113 #endif
AnnaBridge 167:e84263d55307 114
AnnaBridge 167:e84263d55307 115 #endif